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  1. <?xml version="1.0" encoding="UTF-8" standalone="no"?>
  2. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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  4.   <head>
  5.     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  6.     <title>7.9.¬† Xach-Effect</title>
  7.     <link rel="stylesheet" href="gimp-help-plain.css" type="text/css" />
  8.     <link rel="stylesheet" href="gimp-help-screen.css" type="text/css" />
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  12.     <link rel="start" href="index.html" title="GNU Image Manipulation Program" />
  13.     <link rel="up" href="filters-light-and-shadow.html" title="7.¬† Light and Shadow Filters" />
  14.     <link rel="prev" href="script-fu-perspective-shadow.html" title="7.8.¬† Perspective" />
  15.     <link rel="next" href="plug-in-applylens.html" title="7.10.¬† Apply Lens" />
  16.   </head>
  17.   <body>
  18.     <div class="navheader">
  19.       <table width="100%" summary="Navigation header">
  20.         <tr>
  21.           <th colspan="3" align="center">7.9.¬†
  22.     <span lang="en" xml:lang="en">Xach-Effect</span>
  23.   </th>
  24.         </tr>
  25.         <tr>
  26.           <td width="20%" align="left"><a accesskey="p" href="script-fu-perspective-shadow.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  27.           <th width="60%" align="center">7.¬†
  28.     <span lang="en" xml:lang="en">Light and Shadow Filters</span>
  29.   </th>
  30.           <td width="20%" align="right">¬†<a accesskey="n" href="plug-in-applylens.html"><img src="../images/next.png" alt="Next" /></a></td>
  31.         </tr>
  32.       </table>
  33.       <hr />
  34.     </div>
  35.     <div class="sect2" lang="en" xml:lang="en">
  36.       <div class="titlepage">
  37.         <div>
  38.           <div>
  39.             <h3 class="title"><a id="script-fu-xach-effect"></a>7.9.¬†
  40.     <span lang="en" xml:lang="en">Xach-Effect</span>
  41.   </h3>
  42.           </div>
  43.           <div>
  44.             <div class="revhistory">
  45.               <table border="1" width="100%" summary="Revision history">
  46.                 <tr>
  47.                   <th align="left" valign="top" colspan="3">
  48.                     <b>Revision History</b>
  49.                   </th>
  50.                 </tr>
  51.                 <tr>
  52.                   <td align="left">Revision $Revision: 2367 $</td>
  53.                   <td align="left">2007-10-09</td>
  54.                   <td align="left">ude</td>
  55.                 </tr>
  56.               </table>
  57.             </div>
  58.           </div>
  59.         </div>
  60.       </div>
  61.       <a id="id2746768" class="indexterm"></a>
  62.       <a id="id2746786" class="indexterm"></a>
  63.       <div class="sect3" lang="en" xml:lang="en">
  64.         <div class="titlepage">
  65.           <div>
  66.             <div>
  67.               <h4 class="title"><a id="id2746795"></a>7.9.1.¬†
  68.       <span lang="en" xml:lang="en">Overview</span>
  69.     </h4>
  70.             </div>
  71.           </div>
  72.         </div>
  73.         <div class="figure">
  74.           <a id="id2746805"></a>
  75.           <p class="title">
  76.             <b>Figure¬†16.95.¬†
  77.         <span lang="en" xml:lang="en">
  78.           Example for the ‚Äú<span class="quote">Xach-Effect</span>‚Äù filter
  79.         </span>
  80.       </b>
  81.           </p>
  82.           <div class="figure-contents">
  83.             <div class="mediaobject">
  84.               <img src="../images/filters/examples/taj_orig.jpg" alt="Example for the Xach-Effect filter" />
  85.               <div class="caption">
  86.                 <p>Original image</p>
  87.               </div>
  88.             </div>
  89.             <div class="mediaobject">
  90.               <img src="../images/filters/examples/light-taj-xach-effect.jpg" alt="Example for the Xach-Effect filter" />
  91.               <div class="caption">
  92.                 <p>‚Äú<span class="quote">Xach-Effect</span>‚Äù applied</p>
  93.               </div>
  94.             </div>
  95.           </div>
  96.         </div>
  97.         <br class="figure-break" />
  98.         <p>
  99.       This filter adds a subtle translucent 3D effect to the selected region
  100.       or alpha channel. This 3D effect is achieved by
  101.     </p>
  102.         <div class="itemizedlist">
  103.           <ul type="disc">
  104.             <li>
  105.               <p>
  106.           Highlighting the selection: a new layer (‚Äú<span class="quote">Highlight</span>‚Äù)
  107.           will be created above the active layer, filled with the highlight
  108.           color. Then a <a class="link" href="gimp-dialogs-structure.html#gimp-layer-mask" title="2.1.3.¬† Layer masks">layer mask</a> will
  109.           be added to that layer making the unmasked pixel partially
  110.           transparent.
  111.         </p>
  112.               <div class="mediaobject">
  113.                 <img src="../images/filters/examples/xach-effect-layers.png" />
  114.                 <div class="caption">
  115.                   <p>Highlight layer with layer mask</p>
  116.                 </div>
  117.               </div>
  118.             </li>
  119.             <li>
  120.               <p>
  121.           Painting the selection's left and top edges with the highlight
  122.           color: for that the ‚Äú<span class="quote">Highlight</span>‚Äù layer will be extended
  123.           by one pixel left and up. These small areas will be opaque.
  124.         </p>
  125.             </li>
  126.             <li>
  127.               <p>
  128.           Creating a <a class="link" href="script-fu-drop-shadow.html" title="7.7.¬† Drop Shadow">drop shadow</a>
  129.           at the bottom right side of the selection.
  130.         </p>
  131.             </li>
  132.           </ul>
  133.         </div>
  134.         <p>
  135.       You may vary these default settings, for example select different colors
  136.       for highlight or shadow and change amount and directions of offsets.
  137.     </p>
  138.       </div>
  139.       <div class="sect3" lang="en" xml:lang="en">
  140.         <div class="titlepage">
  141.           <div>
  142.             <div>
  143.               <h4 class="title"><a id="id2746970"></a>7.9.2.¬†
  144.       <span lang="en" xml:lang="en">Activate the filter</span>
  145.     </h4>
  146.             </div>
  147.           </div>
  148.         </div>
  149.         <p>
  150.       The filter is found in the image window menu under
  151.       <span class="guimenu"><span class="accel">F</span>ilters</span> ‚Üí <span class="guisubmenu"><span class="accel">L</span>ight and Shadow</span> ‚Üí <span class="guimenuitem"><span class="accel">X</span>ach-Effect</span>.
  152.     </p>
  153.       </div>
  154.       <div class="sect3" lang="en" xml:lang="en">
  155.         <div class="titlepage">
  156.           <div>
  157.             <div>
  158.               <h4 class="title"><a id="id2747018"></a>7.9.3.¬†
  159.       <span lang="en" xml:lang="en">Options</span>
  160.     </h4>
  161.             </div>
  162.           </div>
  163.         </div>
  164.         <p>
  165.       There are two groups of options, each controlling the highlight or the
  166.       shadow, and a checkbox for the selection behaviour.
  167.     </p>
  168.         <div class="figure">
  169.           <a id="id2747037"></a>
  170.           <p class="title">
  171.             <b>Figure¬†16.96.¬†
  172.         <span lang="en" xml:lang="en">‚Äú<span class="quote">Xach-Effect</span>‚Äù options</span>
  173.       </b>
  174.           </p>
  175.           <div class="figure-contents">
  176.             <div class="mediaobject">
  177.               <img src="../images/filters/options-light-xach-effect.png" alt="Xach-Effect options" />
  178.             </div>
  179.           </div>
  180.         </div>
  181.         <br class="figure-break" />
  182.         <div class="variablelist">
  183.           <dl>
  184.             <dt>
  185.               <span class="term">Highlight X/Y offset</span>
  186.             </dt>
  187.             <dd>
  188.               <p>
  189.             The selection's left and top edge are painted with the highlight
  190.             color. The highlight offset is the size (width or height) of the
  191.             respective area. If offset is less than 0 (this is the default),
  192.             the left (X offset < 0) or top (Y offset < 0) area will be
  193.             colored. If offset is greater than 0, the right (X offset > 0)
  194.             or bottom (Y offset > 0) area will be painted.
  195.           </p>
  196.             </dd>
  197.             <dt>
  198.               <span class="term">Highlight color</span>
  199.             </dt>
  200.             <dd>
  201.               <p>
  202.             This is the color used to highlight the selected area. It defaults
  203.             to white, but clicking on the swatch button brings up a color
  204.             selector and you may select any other color.
  205.           </p>
  206.             </dd>
  207.             <dt>
  208.               <span class="term">Highlight opacity</span>
  209.             </dt>
  210.             <dd>
  211.               <p>
  212.             The selection will be covered by a partially transparent area
  213.             filled with the highlight color. This option lets you set the
  214.             level of transparency. Since a <a class="link" href="gimp-dialogs-structure.html#gimp-layer-mask" title="2.1.3.¬† Layer masks">layer mask</a> will be used, the
  215.             value ranges from 0 (full transparency) to 255 (full opacity).
  216.           </p>
  217.               <p>
  218.             The highlight opacity defaults to 66, which is equivalent to 26%.
  219.           </p>
  220.             </dd>
  221.             <dt>
  222.               <span class="term">Drop shadow options</span>
  223.             </dt>
  224.             <dd>
  225.               <p>
  226.             These options work like the respective <a class="link" href="script-fu-drop-shadow.html" title="7.7.¬† Drop Shadow">Drop Shadow</a> options
  227.             (without resizing). Briefly:
  228.           </p>
  229.               <div class="variablelist">
  230.                 <dl>
  231.                   <dt>
  232.                     <span class="term">Drop shadow color</span>
  233.                   </dt>
  234.                   <dd>
  235.                     <p>
  236.                   Click on the button to open a color selector.
  237.                 </p>
  238.                   </dd>
  239.                   <dt>
  240.                     <span class="term">Drop shadow opacity</span>
  241.                   </dt>
  242.                   <dd>
  243.                     <p>
  244.                   The opacity (0% - 100%) of the layer containing the shadow.
  245.                 </p>
  246.                   </dd>
  247.                   <dt>
  248.                     <span class="term">Drop shadow blur radius</span>
  249.                   </dt>
  250.                   <dd>
  251.                     <p>
  252.                   The radius used by the <a class="link" href="plug-in-gauss.html" title="2.3.¬† Gaussian Blur">Gaussian blur</a> filter, which
  253.                   will be applied to the shadow.
  254.                 </p>
  255.                   </dd>
  256.                   <dt>
  257.                     <span class="term">Drop shadow X/Y offset</span>
  258.                   </dt>
  259.                   <dd>
  260.                     <p>
  261.                   Direction and amount, by which the shadow will be moved from
  262.                   the selection.
  263.                 </p>
  264.                   </dd>
  265.                 </dl>
  266.               </div>
  267.             </dd>
  268.             <dt>
  269.               <span class="term">Keep selection</span>
  270.             </dt>
  271.             <dd>
  272.               <p>
  273.             If checked, the active selection will remain active when the
  274.             filter has been applied.
  275.           </p>
  276.             </dd>
  277.           </dl>
  278.         </div>
  279.       </div>
  280.     </div>
  281.     <div class="navfooter">
  282.       <hr />
  283.       <table width="100%" summary="Navigation footer">
  284.         <tr>
  285.           <td width="40%" align="left"><a accesskey="p" href="script-fu-perspective-shadow.html"><img src="../images/prev.png" alt="Prev" /></a>¬†</td>
  286.           <td width="20%" align="center">
  287.             <a accesskey="u" href="filters-light-and-shadow.html">
  288.               <img src="../images/up.png" alt="Up" />
  289.             </a>
  290.           </td>
  291.           <td width="40%" align="right">¬†<a accesskey="n" href="plug-in-applylens.html"><img src="../images/next.png" alt="Next" /></a></td>
  292.         </tr>
  293.         <tr>
  294.           <td width="40%" align="left" valign="top"><a accesskey="p" href="script-fu-perspective-shadow.html">7.8.¬†
  295.     <span lang="en" xml:lang="en">Perspective</span>
  296.   </a>¬†</td>
  297.           <td width="20%" align="center">
  298.             <a accesskey="h" href="index.html">
  299.               <img src="../images/home.png" alt="Home" />
  300.             </a>
  301.           </td>
  302.           <td width="40%" align="right" valign="top">¬†<a accesskey="n" href="plug-in-applylens.html">7.10.¬†
  303.     <span lang="en" xml:lang="en">Apply Lens</span>
  304.   </a></td>
  305.         </tr>
  306.       </table>
  307.     </div>
  308.   </body>
  309. </html>
  310.